Speaking after a visit to Lincoln County Hospital, Mr Corbyn continued: "They can't go on to the next emergency because they can't get out of the car park, because they can't safely let the patient leave.

"The pressures are unbelievable. The pressures of patients on trollies in the corridor waiting for a bed. That's pressure, obviously on the patient and their families, but obviously great pressure on the staff.

Speaking about ways of fixing the NHS, Mr Corbyn said: "A lot of it is about money. I've heard of the crisis that was on over the last few weeks.

"Obviously they (the staff) are concerned about the number of older people coming who are suffering from dementia."